<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Test11</title>
</head>
<body>
    <script type="text/javascript">
        var a = parseInt(prompt("请输入第一个整数"));
        var b = parseInt(prompt("请输入第二个整数"));
        if (a+b>100){
            alert("大于100 ："+(a+b-100));
        }else {
            alert("小于100 ："+(a+b));
        }
    </script>
</body>
</html>